-eval $(mplayer -noconsolecontrols -input file=/dev/null -slave -really-quiet -identify -frames 0 -ao null -vo null "$video" |sed -rn 's:ID_VIDEO_WIDTH=(.*):width=\1:p;s:ID_VIDEO_HEIGHT=(.*):height=\1:p;s:ID_LENGTH=(.*)(\..*)$:length=\1:p;')
-
-[ -z "$tags" ] && tags='|'
+mplayer -really-quiet -identify -frames 0 -nosound -vo null "$video" \
+| sed -rn 's:ID_VIDEO_WIDTH=(.*):\1:p;
+ s:ID_VIDEO_HEIGHT=(.*):\1:p;
+ s:ID_LENGTH=(.*)(\..*)$:\1:p;' \
+| tr '\n' ' ' \
+| read width height length